Microsoft 365 Roadmap

Outlook
Emails marked with External to be supported as Rules conditions

Feature details and release plans from a build snapshot of Microsoft's official roadmap feed.

All Microsoft 365 updates
Product
Outlook
Release status
Launched
RSS publication

Feature overview

The External tag on an email, set by the ExternalInOutlook feature, will now be usable as a condition in Outlook Inbox Rules. This change also makes available the ability to create or modify these Rules on the new Outlook for Windows, Outlook Web, and Outlook for Mac.

Expected release date

June CY2026

Source: Microsoft 365 Roadmap RSS (build snapshot) Feature ID: 563806

RSS snapshot built . Refreshed on rebuild and deployment.

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